"It is certainly not in my possession at this moment," said Dan.

"No, but you have it?"

"And if I have?"

"It is necessary for our success."

"Then, my first service, is to put you into complete possession of the secret?"

"If you will so express it."

"Very well, madame, I will do so; but, on one condition."

"And what is that, my friend?"

"That I be allowed to see Nancy, and that she herself shall ask me to do as you desire."

For a moment Madame de la Fontaine was silent. "Eh bien," she said at last, "you do not trust me?"